My 2 year old white leghorn just came off a nice break after molting and winter vacation.she has laid 4 eggs over the last two weeks. One had no shell. The other three had weaker then normal shells and were coated with a light egg yolk/white wash on the outside. Inside, the eggs are completely watery yolk- white mix. Looks disgusting. My hen is acting fine, eating fine, active. Is this just from coming off a break, or is it something serious? Your advise is very much appreciated.